Counting Countries:  Counting Countries is the podcast.  The website is https://globalgaz.com/.  The podcast features interviews of people trying to or have already traveled to every country in the world.  The website is more of a travel blog.

Extra Pack of Peanuts:  http://extrapackofpeanuts.com/ and a podcast.  I listen to the podcast more than I use the website. Their podcast is interesting and sometimes useful.  I have bought several things that I heard about on their year end buyers guide (usually airs Oct-Nov).

Zero to Travel:  http://zerototravel.com/ and a podcast. I listen to the podcast more than I use the website.  He usually interviews guests about their travel experiences.  The guests are generally long-term travelers.  

Atlas Obscura: https://www.atlasobscura.com/ a great site for getting off the beaten path.

World Nomads: https://www.worldnomads.com/ they are in the business of selling travel insurance, but their site and podcast have a lot of information.